1857 Seated Dime PR64 NGC. The number of proof Seated
Liberty dimes coined in 1857 is unknown, but the mintage was
definitely small, and the issue is rare in all grades. This
delightful near-Gem specimen exhibits sharp striking details and a
light, even layer of rose toning. Census: 11 in 64, 15 finer
(3/10).From The Boca Collection, Part II. (NGC ID# 23CB, PCGS# 4746)